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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Saint Denis, Reunion, France Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

September Air Quality Analysis

Saint Denis, Reunion, France

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
10th Sep 2025
63AQI
Lowest AQI recorded on
28th Sep 2025
13AQI

Same Day Analysis (23rd September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 38 of Good air quality on the same day.

Day & Night AQI Trend: 23rd Sep - 24th Sep 2026

Saint Denis, Reunion, France

AQI
Day
Night
.

6 AM23rd Sep 2026

6 PM

5 AM24th Sep 2026

Day time
Avg. Highest Time
6AM23rd Sep

38AQI

Avg. Lowest Time
10AM23rd Sep

31AQI

Night time
Avg. Highest Time
5AM24th Sep

51AQI

Avg. Lowest Time
7PM23rd Sep

35AQI

In the last 24 hours,

Saint Denis's AQI reached its highest point of 51 at 5 AM during the Night, while the lowest point, 31, was recorded at 10 AM during the Day between 23rd Sep and 24th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

Saint Denis, Reunion, France

AugSep
26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th
Day
Night
26th Aug 2026326 AMAQI
26th Aug 2026327 AMAQI
26th Aug 2026358 AMAQI
26th Aug 2026389 AMAQI
26th Aug 20263210 AMAQI
26th Aug 20263411 AMAQI
26th Aug 20263512 PMAQI
26th Aug 2026341 PMAQI
26th Aug 2026322 PMAQI
26th Aug 2026323 PMAQI
26th Aug 2026284 PMAQI
26th Aug 2026295 PMAQI
26th Aug 2026296 PMAQI
26th Aug 2026297 PMAQI
26th Aug 2026308 PMAQI
26th Aug 2026329 PMAQI
26th Aug 20263110 PMAQI
26th Aug 20263011 PMAQI
27th Aug 20263112 AMAQI
27th Aug 2026291 AMAQI
27th Aug 2026302 AMAQI
27th Aug 2026273 AMAQI
27th Aug 2026304 AMAQI
27th Aug 2026315 AMAQI

17°C15/19°C

27th Aug 2026326 AMAQI
27th Aug 2026287 AMAQI
27th Aug 2026288 AMAQI
27th Aug 2026349 AMAQI
27th Aug 20262610 AMAQI
27th Aug 20262811 AMAQI
27th Aug 20263112 PMAQI
27th Aug 2026311 PMAQI
27th Aug 2026322 PMAQI
27th Aug 2026303 PMAQI
27th Aug 2026284 PMAQI
27th Aug 2026305 PMAQI
27th Aug 2026316 PMAQI
27th Aug 2026307 PMAQI
27th Aug 2026298 PMAQI
27th Aug 2026369 PMAQI
27th Aug 20263710 PMAQI
27th Aug 20264311 PMAQI
28th Aug 20264412 AMAQI
28th Aug 2026441 AMAQI
28th Aug 2026462 AMAQI
28th Aug 2026453 AMAQI
28th Aug 2026464 AMAQI
28th Aug 2026455 AMAQI

17°C15/20°C

28th Aug 2026456 AMAQI
28th Aug 2026287 AMAQI
28th Aug 2026358 AMAQI
28th Aug 2026419 AMAQI
28th Aug 20263210 AMAQI
28th Aug 20263011 AMAQI
28th Aug 20262912 PMAQI
28th Aug 2026341 PMAQI
28th Aug 2026362 PMAQI
28th Aug 2026343 PMAQI
28th Aug 2026284 PMAQI
28th Aug 2026275 PMAQI
28th Aug 2026306 PMAQI
28th Aug 2026307 PMAQI
28th Aug 2026298 PMAQI
28th Aug 2026309 PMAQI
28th Aug 20263410 PMAQI
28th Aug 20264311 PMAQI
29th Aug 20264612 AMAQI
29th Aug 2026431 AMAQI
29th Aug 2026452 AMAQI
29th Aug 2026373 AMAQI
29th Aug 2026374 AMAQI
29th Aug 2026335 AMAQI

14°C13/15°C

29th Aug 2026306 AMAQI
29th Aug 2026287 AMAQI
29th Aug 2026378 AMAQI
29th Aug 2026359 AMAQI
29th Aug 20263610 AMAQI
29th Aug 20262411 AMAQI
29th Aug 20263512 PMAQI
29th Aug 2026371 PMAQI
29th Aug 2026292 PMAQI
29th Aug 2026213 PMAQI
29th Aug 2026214 PMAQI
29th Aug 2026225 PMAQI
29th Aug 2026226 PMAQI
29th Aug 2026357 PMAQI
29th Aug 2026368 PMAQI
29th Aug 2026339 PMAQI
29th Aug 20263410 PMAQI
29th Aug 20263611 PMAQI
30th Aug 20263712 AMAQI
30th Aug 2026341 AMAQI
30th Aug 2026412 AMAQI
30th Aug 2026493 AMAQI
30th Aug 2026304 AMAQI
30th Aug 2026295 AMAQI

14°C12/17°C

30th Aug 2026286 AMAQI
30th Aug 2026297 AMAQI
30th Aug 2026378 AMAQI
30th Aug 2026339 AMAQI
30th Aug 20262910 AMAQI
30th Aug 20263211 AMAQI
30th Aug 20262812 PMAQI
30th Aug 2026261 PMAQI
30th Aug 2026272 PMAQI
30th Aug 2026293 PMAQI
30th Aug 2026324 PMAQI
30th Aug 2026295 PMAQI
30th Aug 2026276 PMAQI
30th Aug 2026287 PMAQI
30th Aug 2026288 PMAQI
30th Aug 2026289 PMAQI
30th Aug 20262610 PMAQI
30th Aug 20262711 PMAQI
31st Aug 20263212 AMAQI
31st Aug 2026261 AMAQI
31st Aug 2026272 AMAQI
31st Aug 2026253 AMAQI
31st Aug 2026244 AMAQI
31st Aug 2026225 AMAQI

15°C13/18°C

31st Aug 2026266 AMAQI
31st Aug 2026287 AMAQI
31st Aug 2026358 AMAQI
31st Aug 2026359 AMAQI
31st Aug 20263510 AMAQI
31st Aug 20263711 AMAQI
31st Aug 20263312 PMAQI
31st Aug 2026251 PMAQI
31st Aug 2026252 PMAQI
31st Aug 2026243 PMAQI
31st Aug 2026244 PMAQI
31st Aug 2026295 PMAQI
31st Aug 2026336 PMAQI
31st Aug 2026447 PMAQI
31st Aug 2026488 PMAQI
31st Aug 2026439 PMAQI
31st Aug 20262910 PMAQI
31st Aug 20264211 PMAQI
1st Sep 20264112 AMAQI
1st Sep 2026261 AMAQI
1st Sep 2026312 AMAQI
1st Sep 2026273 AMAQI
1st Sep 2026394 AMAQI
1st Sep 2026275 AMAQI

15°C13/18°C

1st Sep 2026276 AMAQI
1st Sep 2026377 AMAQI
1st Sep 2026448 AMAQI
1st Sep 2026419 AMAQI
1st Sep 20262910 AMAQI
1st Sep 20263711 AMAQI
1st Sep 20264412 PMAQI
1st Sep 2026481 PMAQI
1st Sep 2026402 PMAQI
1st Sep 2026383 PMAQI
1st Sep 2026364 PMAQI
1st Sep 2026255 PMAQI
1st Sep 2026306 PMAQI
1st Sep 2026327 PMAQI
1st Sep 2026418 PMAQI
1st Sep 2026409 PMAQI
1st Sep 20263810 PMAQI
1st Sep 20262911 PMAQI
2nd Sep 20263612 AMAQI
2nd Sep 2026251 AMAQI
2nd Sep 2026242 AMAQI
2nd Sep 2026293 AMAQI
2nd Sep 2026274 AMAQI
2nd Sep 2026385 AMAQI

17°C14/20°C

2nd Sep 2026366 AMAQI
2nd Sep 2026357 AMAQI
2nd Sep 2026368 AMAQI
2nd Sep 2026309 AMAQI
2nd Sep 20262910 AMAQI
2nd Sep 20262711 AMAQI
2nd Sep 20262912 PMAQI
2nd Sep 2026291 PMAQI
2nd Sep 2026272 PMAQI
2nd Sep 2026253 PMAQI
2nd Sep 2026254 PMAQI
2nd Sep 2026275 PMAQI
2nd Sep 2026256 PMAQI
2nd Sep 2026407 PMAQI
2nd Sep 2026418 PMAQI
2nd Sep 2026429 PMAQI
2nd Sep 20263410 PMAQI
2nd Sep 20263211 PMAQI
3rd Sep 20262812 AMAQI
3rd Sep 2026271 AMAQI
3rd Sep 2026302 AMAQI
3rd Sep 2026273 AMAQI
3rd Sep 2026274 AMAQI
3rd Sep 2026305 AMAQI

17°C15/19°C

3rd Sep 2026426 AMAQI
3rd Sep 2026497 AMAQI
3rd Sep 2026428 AMAQI
3rd Sep 2026409 AMAQI
3rd Sep 20264610 AMAQI
3rd Sep 20263811 AMAQI
3rd Sep 20263012 PMAQI
3rd Sep 2026401 PMAQI
3rd Sep 2026472 PMAQI
3rd Sep 2026413 PMAQI
3rd Sep 2026474 PMAQI
3rd Sep 2026535 PMAQI
3rd Sep 2026326 PMAQI
3rd Sep 2026347 PMAQI
3rd Sep 2026448 PMAQI
3rd Sep 2026439 PMAQI
3rd Sep 20264110 PMAQI
3rd Sep 20263411 PMAQI
4th Sep 20263712 AMAQI
4th Sep 2026441 AMAQI
4th Sep 2026412 AMAQI
4th Sep 2026423 AMAQI
4th Sep 2026344 AMAQI
4th Sep 2026395 AMAQI

17°C16/21°C

4th Sep 2026406 AMAQI
4th Sep 2026447 AMAQI
4th Sep 2026448 AMAQI
4th Sep 2026439 AMAQI
4th Sep 20264010 AMAQI
4th Sep 20264511 AMAQI
4th Sep 20262712 PMAQI
4th Sep 2026261 PMAQI
4th Sep 2026252 PMAQI
4th Sep 2026273 PMAQI
4th Sep 2026404 PMAQI
4th Sep 2026295 PMAQI
4th Sep 2026256 PMAQI
4th Sep 2026387 PMAQI
4th Sep 2026468 PMAQI
4th Sep 2026469 PMAQI
4th Sep 20264710 PMAQI
4th Sep 20263311 PMAQI
5th Sep 20262812 AMAQI
5th Sep 2026391 AMAQI
5th Sep 2026372 AMAQI
5th Sep 2026243 AMAQI
5th Sep 2026284 AMAQI
5th Sep 2026405 AMAQI

17°C15/19°C

5th Sep 2026416 AMAQI
5th Sep 2026387 AMAQI
5th Sep 2026408 AMAQI
5th Sep 2026369 AMAQI
5th Sep 20263710 AMAQI
5th Sep 20262511 AMAQI
5th Sep 20262712 PMAQI
5th Sep 2026281 PMAQI
5th Sep 2026262 PMAQI
5th Sep 2026253 PMAQI
5th Sep 2026244 PMAQI
5th Sep 2026255 PMAQI
5th Sep 2026276 PMAQI
5th Sep 2026267 PMAQI
5th Sep 2026258 PMAQI
5th Sep 2026329 PMAQI
5th Sep 20263910 PMAQI
5th Sep 20263111 PMAQI
6th Sep 20263212 AMAQI
6th Sep 2026311 AMAQI
6th Sep 2026302 AMAQI
6th Sep 2026293 AMAQI
6th Sep 2026334 AMAQI
6th Sep 2026375 AMAQI

17°C16/20°C

6th Sep 2026386 AMAQI
6th Sep 2026337 AMAQI
6th Sep 2026358 AMAQI
6th Sep 2026349 AMAQI
6th Sep 20263610 AMAQI
6th Sep 20262211 AMAQI
6th Sep 20263012 PMAQI
6th Sep 2026281 PMAQI
6th Sep 2026262 PMAQI
6th Sep 2026273 PMAQI
6th Sep 2026284 PMAQI
6th Sep 2026315 PMAQI
6th Sep 2026346 PMAQI
6th Sep 2026307 PMAQI
6th Sep 2026298 PMAQI
6th Sep 2026339 PMAQI
6th Sep 20263010 PMAQI
6th Sep 20263211 PMAQI
7th Sep 20263312 AMAQI
7th Sep 2026311 AMAQI
7th Sep 2026302 AMAQI
7th Sep 2026303 AMAQI
7th Sep 2026314 AMAQI
7th Sep 2026295 AMAQI

17°C15/19°C

7th Sep 2026306 AMAQI
7th Sep 2026287 AMAQI
7th Sep 2026298 AMAQI
7th Sep 2026319 AMAQI
7th Sep 20262510 AMAQI
7th Sep 20264011 AMAQI
7th Sep 20263012 PMAQI
7th Sep 2026351 PMAQI
7th Sep 2026272 PMAQI
7th Sep 2026253 PMAQI
7th Sep 2026254 PMAQI
7th Sep 2026255 PMAQI
7th Sep 2026246 PMAQI
7th Sep 2026247 PMAQI
7th Sep 2026278 PMAQI
7th Sep 2026339 PMAQI
7th Sep 20262910 PMAQI
7th Sep 20263511 PMAQI
8th Sep 20263512 AMAQI
8th Sep 2026311 AMAQI
8th Sep 2026242 AMAQI
8th Sep 2026473 AMAQI
8th Sep 2026444 AMAQI
8th Sep 2026475 AMAQI

16°C14/19°C

8th Sep 2026296 AMAQI
8th Sep 2026387 AMAQI
8th Sep 2026348 AMAQI
8th Sep 2026339 AMAQI
8th Sep 20262710 AMAQI
8th Sep 20262211 AMAQI
8th Sep 20262512 PMAQI
8th Sep 2026251 PMAQI
8th Sep 2026342 PMAQI
8th Sep 2026453 PMAQI
8th Sep 2026404 PMAQI
8th Sep 2026415 PMAQI
8th Sep 2026306 PMAQI
8th Sep 2026377 PMAQI
8th Sep 2026388 PMAQI
8th Sep 2026439 PMAQI
8th Sep 20263510 PMAQI
8th Sep 20263511 PMAQI
9th Sep 20263212 AMAQI
9th Sep 2026391 AMAQI
9th Sep 2026292 AMAQI
9th Sep 2026263 AMAQI
9th Sep 2026374 AMAQI
9th Sep 2026345 AMAQI

15°C14/17°C

9th Sep 2026356 AMAQI
9th Sep 2026257 AMAQI
9th Sep 2026318 AMAQI
9th Sep 2026299 AMAQI
9th Sep 20262810 AMAQI
9th Sep 20262311 AMAQI
9th Sep 20262612 PMAQI
9th Sep 2026291 PMAQI
9th Sep 2026292 PMAQI
9th Sep 2026293 PMAQI
9th Sep 2026294 PMAQI
9th Sep 2026255 PMAQI
9th Sep 2026356 PMAQI
9th Sep 2026387 PMAQI
9th Sep 2026448 PMAQI
9th Sep 2026499 PMAQI
9th Sep 20262810 PMAQI
9th Sep 20263111 PMAQI
10th Sep 20263112 AMAQI
10th Sep 2026291 AMAQI
10th Sep 2026302 AMAQI
10th Sep 2026353 AMAQI
10th Sep 2026344 AMAQI
10th Sep 2026385 AMAQI

15°C14/18°C

10th Sep 2026376 AMAQI
10th Sep 2026327 AMAQI
10th Sep 2026478 AMAQI
10th Sep 2026429 AMAQI
10th Sep 20264610 AMAQI
10th Sep 20264311 AMAQI
10th Sep 20262612 PMAQI
10th Sep 2026371 PMAQI
10th Sep 2026272 PMAQI
10th Sep 2026273 PMAQI
10th Sep 2026304 PMAQI
10th Sep 2026285 PMAQI
10th Sep 2026266 PMAQI
10th Sep 2026337 PMAQI
10th Sep 2026318 PMAQI
10th Sep 2026359 PMAQI
10th Sep 20263510 PMAQI
10th Sep 20263411 PMAQI
11th Sep 20263812 AMAQI
11th Sep 2026431 AMAQI
11th Sep 2026392 AMAQI
11th Sep 2026383 AMAQI
11th Sep 2026394 AMAQI
11th Sep 2026345 AMAQI

16°C13/20°C

11th Sep 2026476 AMAQI
11th Sep 2026397 AMAQI
11th Sep 2026438 AMAQI
11th Sep 2026429 AMAQI
11th Sep 20263510 AMAQI
11th Sep 20263211 AMAQI
11th Sep 20263312 PMAQI
11th Sep 2026321 PMAQI
11th Sep 2026322 PMAQI
11th Sep 2026393 PMAQI
11th Sep 2026444 PMAQI
11th Sep 2026375 PMAQI
11th Sep 2026356 PMAQI
11th Sep 2026417 PMAQI
11th Sep 2026458 PMAQI
11th Sep 2026419 PMAQI
11th Sep 20264110 PMAQI
11th Sep 20263711 PMAQI
12th Sep 20263912 AMAQI
12th Sep 2026331 AMAQI
12th Sep 2026402 AMAQI
12th Sep 2026363 AMAQI
12th Sep 2026394 AMAQI
12th Sep 2026335 AMAQI

16°C14/19°C

12th Sep 2026366 AMAQI
12th Sep 2026387 AMAQI
12th Sep 2026408 AMAQI
12th Sep 2026379 AMAQI
12th Sep 20263410 AMAQI
12th Sep 20263011 AMAQI
12th Sep 20262912 PMAQI
12th Sep 2026301 PMAQI
12th Sep 2026312 PMAQI
12th Sep 2026293 PMAQI
12th Sep 2026294 PMAQI
12th Sep 2026385 PMAQI
12th Sep 2026326 PMAQI
12th Sep 2026297 PMAQI
12th Sep 2026328 PMAQI
12th Sep 2026359 PMAQI
12th Sep 20263510 PMAQI
12th Sep 20263711 PMAQI
13th Sep 2026411 AMAQI
13th Sep 2026482 AMAQI
13th Sep 2026413 AMAQI
13th Sep 2026394 AMAQI
13th Sep 2026435 AMAQI

16°C15/17°C

13th Sep 2026526 AMAQI
13th Sep 2026577 AMAQI
13th Sep 2026608 AMAQI
13th Sep 2026379 AMAQI
13th Sep 20263710 AMAQI
13th Sep 20262911 AMAQI
13th Sep 20262612 PMAQI
13th Sep 2026261 PMAQI
13th Sep 2026262 PMAQI
13th Sep 2026303 PMAQI
13th Sep 2026294 PMAQI
13th Sep 2026305 PMAQI
13th Sep 2026306 PMAQI
13th Sep 2026297 PMAQI
13th Sep 2026328 PMAQI
13th Sep 2026319 PMAQI
13th Sep 20263110 PMAQI
13th Sep 20263211 PMAQI
14th Sep 20263412 AMAQI
14th Sep 2026331 AMAQI
14th Sep 2026332 AMAQI
14th Sep 2026313 AMAQI
14th Sep 2026274 AMAQI
14th Sep 2026265 AMAQI

16°C14/20°C

14th Sep 2026256 AMAQI
14th Sep 2026237 AMAQI
14th Sep 2026258 AMAQI
14th Sep 2026329 AMAQI
14th Sep 20263510 AMAQI
14th Sep 20262811 AMAQI
14th Sep 20262912 PMAQI
14th Sep 2026291 PMAQI
14th Sep 2026292 PMAQI
14th Sep 2026253 PMAQI
14th Sep 2026274 PMAQI
14th Sep 2026295 PMAQI
14th Sep 2026306 PMAQI
14th Sep 2026387 PMAQI
14th Sep 2026468 PMAQI
14th Sep 2026459 PMAQI
14th Sep 20263010 PMAQI
14th Sep 20262911 PMAQI
15th Sep 20263312 AMAQI
15th Sep 2026311 AMAQI
15th Sep 2026302 AMAQI
15th Sep 2026283 AMAQI
15th Sep 2026314 AMAQI
15th Sep 2026285 AMAQI

16°C13/20°C

15th Sep 2026406 AMAQI
15th Sep 2026317 AMAQI
15th Sep 2026288 AMAQI
15th Sep 2026279 AMAQI
15th Sep 20263010 AMAQI
15th Sep 20262911 AMAQI
15th Sep 20263012 PMAQI
15th Sep 2026431 PMAQI
15th Sep 2026292 PMAQI
15th Sep 2026313 PMAQI
15th Sep 2026314 PMAQI
15th Sep 2026275 PMAQI
15th Sep 2026286 PMAQI
15th Sep 2026277 PMAQI
15th Sep 2026298 PMAQI
15th Sep 2026319 PMAQI
15th Sep 20263310 PMAQI
15th Sep 20263011 PMAQI
16th Sep 20263112 AMAQI
16th Sep 2026391 AMAQI
16th Sep 2026382 AMAQI
16th Sep 2026513 AMAQI
16th Sep 2026484 AMAQI
16th Sep 2026305 AMAQI

15°C13/19°C

16th Sep 2026306 AMAQI
16th Sep 2026317 AMAQI
16th Sep 2026348 AMAQI
16th Sep 2026379 AMAQI
16th Sep 20263310 AMAQI
16th Sep 20262711 AMAQI
16th Sep 20262712 PMAQI
16th Sep 2026271 PMAQI
16th Sep 2026292 PMAQI
16th Sep 2026313 PMAQI
16th Sep 2026314 PMAQI
16th Sep 2026275 PMAQI
16th Sep 2026316 PMAQI
16th Sep 2026337 PMAQI
16th Sep 2026328 PMAQI
16th Sep 2026349 PMAQI
16th Sep 20262910 PMAQI
16th Sep 20263711 PMAQI
17th Sep 20264312 AMAQI
17th Sep 2026301 AMAQI
17th Sep 2026362 AMAQI
17th Sep 2026293 AMAQI
17th Sep 2026334 AMAQI
17th Sep 2026355 AMAQI

15°C13/17°C

17th Sep 2026276 AMAQI
17th Sep 2026307 AMAQI
17th Sep 2026348 AMAQI
17th Sep 2026379 AMAQI
17th Sep 20262910 AMAQI
17th Sep 20263211 AMAQI
17th Sep 20263512 PMAQI
17th Sep 2026351 PMAQI
17th Sep 2026282 PMAQI
17th Sep 2026243 PMAQI
17th Sep 2026374 PMAQI
17th Sep 2026415 PMAQI
17th Sep 2026416 PMAQI
17th Sep 2026317 PMAQI
17th Sep 2026438 PMAQI
17th Sep 2026459 PMAQI
17th Sep 20263210 PMAQI
17th Sep 20264011 PMAQI
18th Sep 20263812 AMAQI
18th Sep 2026361 AMAQI
18th Sep 2026462 AMAQI
18th Sep 2026493 AMAQI
18th Sep 2026354 AMAQI
18th Sep 2026425 AMAQI

15°C14/17°C

18th Sep 2026436 AMAQI
18th Sep 2026407 AMAQI
18th Sep 2026378 AMAQI
18th Sep 2026369 AMAQI
18th Sep 20263810 AMAQI
18th Sep 20263411 AMAQI
18th Sep 20263212 PMAQI
18th Sep 2026301 PMAQI
18th Sep 2026262 PMAQI
18th Sep 2026333 PMAQI
18th Sep 2026444 PMAQI
18th Sep 2026385 PMAQI
18th Sep 2026296 PMAQI
18th Sep 2026317 PMAQI
18th Sep 2026438 PMAQI
18th Sep 2026419 PMAQI
18th Sep 20263810 PMAQI
18th Sep 20263811 PMAQI
19th Sep 20263912 AMAQI
19th Sep 2026311 AMAQI
19th Sep 2026302 AMAQI
19th Sep 2026383 AMAQI
19th Sep 2026344 AMAQI
19th Sep 2026295 AMAQI

16°C14/19°C

19th Sep 2026366 AMAQI
19th Sep 2026427 AMAQI
19th Sep 2026378 AMAQI
19th Sep 2026379 AMAQI
19th Sep 20263510 AMAQI
19th Sep 20263611 AMAQI
19th Sep 20263712 PMAQI
19th Sep 2026311 PMAQI
19th Sep 2026302 PMAQI
19th Sep 2026323 PMAQI
19th Sep 2026324 PMAQI
19th Sep 2026325 PMAQI
19th Sep 2026316 PMAQI
19th Sep 2026327 PMAQI
19th Sep 2026358 PMAQI
19th Sep 2026339 PMAQI
19th Sep 20263710 PMAQI
19th Sep 20263511 PMAQI
20th Sep 20263712 AMAQI
20th Sep 2026341 AMAQI
20th Sep 2026322 AMAQI
20th Sep 2026303 AMAQI
20th Sep 2026314 AMAQI
20th Sep 2026315 AMAQI

16°C15/19°C

20th Sep 2026346 AMAQI
20th Sep 2026297 AMAQI
20th Sep 2026298 AMAQI
20th Sep 2026329 AMAQI
20th Sep 20263310 AMAQI
20th Sep 20263111 AMAQI
20th Sep 20263312 PMAQI
20th Sep 2026321 PMAQI
20th Sep 2026332 PMAQI
20th Sep 2026343 PMAQI
20th Sep 2026304 PMAQI
20th Sep 2026305 PMAQI
20th Sep 2026326 PMAQI
20th Sep 2026317 PMAQI
20th Sep 2026318 PMAQI
20th Sep 2026319 PMAQI
20th Sep 20262910 PMAQI
20th Sep 20263111 PMAQI
21st Sep 20263112 AMAQI
21st Sep 2026311 AMAQI
21st Sep 2026322 AMAQI
21st Sep 2026293 AMAQI
21st Sep 2026344 AMAQI
21st Sep 2026365 AMAQI

17°C15/19°C

21st Sep 2026286 AMAQI
21st Sep 2026337 AMAQI
21st Sep 2026348 AMAQI
21st Sep 2026329 AMAQI
21st Sep 20263310 AMAQI
21st Sep 20263211 AMAQI
21st Sep 20263512 PMAQI
21st Sep 2026291 PMAQI
21st Sep 2026352 PMAQI
21st Sep 2026323 PMAQI
21st Sep 2026314 PMAQI
21st Sep 2026345 PMAQI
21st Sep 2026386 PMAQI
21st Sep 2026417 PMAQI
21st Sep 2026408 PMAQI
21st Sep 2026429 PMAQI
21st Sep 20264510 PMAQI
21st Sep 20263611 PMAQI
22nd Sep 20264012 AMAQI
22nd Sep 2026411 AMAQI
22nd Sep 2026402 AMAQI
22nd Sep 2026373 AMAQI
22nd Sep 2026374 AMAQI
22nd Sep 2026385 AMAQI

17°C14/21°C

22nd Sep 2026366 AMAQI
22nd Sep 2026367 AMAQI
22nd Sep 2026358 AMAQI
22nd Sep 2026389 AMAQI
22nd Sep 20263710 AMAQI
22nd Sep 20263911 AMAQI
22nd Sep 20263912 PMAQI
22nd Sep 2026381 PMAQI
22nd Sep 2026352 PMAQI
22nd Sep 2026363 PMAQI
22nd Sep 2026364 PMAQI
22nd Sep 2026425 PMAQI
22nd Sep 2026446 PMAQI
22nd Sep 2026487 PMAQI
22nd Sep 2026468 PMAQI
22nd Sep 2026469 PMAQI
22nd Sep 20264210 PMAQI
22nd Sep 20264211 PMAQI
23rd Sep 20264212 AMAQI
23rd Sep 2026431 AMAQI
23rd Sep 2026472 AMAQI
23rd Sep 2026383 AMAQI
23rd Sep 2026384 AMAQI
23rd Sep 2026425 AMAQI

16°C15/19°C

23rd Sep 2026386 AMAQI
23rd Sep 2026377 AMAQI
23rd Sep 2026358 AMAQI
23rd Sep 2026349 AMAQI
23rd Sep 20263110 AMAQI
23rd Sep 20263411 AMAQI
23rd Sep 20263512 PMAQI
23rd Sep 2026371 PMAQI
23rd Sep 2026372 PMAQI
23rd Sep 2026383 PMAQI
23rd Sep 2026364 PMAQI
23rd Sep 2026375 PMAQI
23rd Sep 2026356 PMAQI
23rd Sep 2026357 PMAQI
23rd Sep 2026378 PMAQI
23rd Sep 2026389 PMAQI
23rd Sep 20263910 PMAQI
23rd Sep 20263811 PMAQI
24th Sep 20264012 AMAQI
24th Sep 2026431 AMAQI
24th Sep 2026452 AMAQI
24th Sep 2026483 AMAQI
24th Sep 2026474 AMAQI
24th Sep 2026515 AMAQI

17°C15/19°C

24th Sep 2026516 AMAQI
6 AM
24th Sep 2026487 AMAQI
24th Sep 2026468 AMAQI
24th Sep 2026429 AMAQI
24th Sep 20263410 AMAQI
24th Sep 20264511 AMAQI
24th Sep 20264212 PMAQI
12 PM
24th Sep 2026361 PMAQI
24th Sep 2026352 PMAQI
24th Sep 2026383 PMAQI
24th Sep 2026344 PMAQI
24th Sep 2026325 PMAQI
24th Sep 2026396 PMAQI
6 PM
24th Sep 2026477 PMAQI
24th Sep 2026488 PMAQI
24th Sep 2026489 PMAQI
24th Sep 20264710 PMAQI
24th Sep 20264811 PMAQI
12 AM
5 AM

17°C16/20°C

Day time
Avg. Highest Time
8 AM - 9 AM

37AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
2 PM - 3 PM

31AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 9 AM (Avg. 37), while the lowest AQI was between 2 PM to 3 PM (Avg. 31).
Night time
Avg. Highest Time
8 PM - 9 PM

38AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 7 PM

35AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 9 PM (Avg. 38), while the lowest AQI was between 12 AM to 7 PM (Avg. 35).

2026 Days Vs Air Quality

Saint Denis, Reunion, France

2026

90%

237

10%

26

Total number of days with different AQI categories in last 267 days in 2026 (98 days remaining)

Good
237 Days
Moderate
26 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 267 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Saint Denis, Reunion, France

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
35AQI (US)
2nd January 2026
27AQI (US)
3rd January 2026
31AQI (US)
4th January 2026
26AQI (US)
5th January 2026
26AQI (US)
6th January 2026
35AQI (US)
7th January 2026
31AQI (US)
8th January 2026
33AQI (US)
9th January 2026
33AQI (US)
10th January 2026
27AQI (US)
11th January 2026
26AQI (US)
12th January 2026
26AQI (US)
13th January 2026
18AQI (US)
14th January 2026
18AQI (US)
15th January 2026
26AQI (US)
16th January 2026
33AQI (US)
17th January 2026
31AQI (US)
18th January 2026
33AQI (US)
19th January 2026
32AQI (US)
20th January 2026
32AQI (US)
21st January 2026
29AQI (US)
22nd January 2026
32AQI (US)
23rd January 2026
37AQI (US)
24th January 2026
42AQI (US)
25th January 2026
46AQI (US)
26th January 2026
36AQI (US)
27th January 2026
45AQI (US)
28th January 2026
49AQI (US)
29th January 2026
49AQI (US)
30th January 2026
56AQI (US)
31st January 2026
45AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
43AQI (US)
3rd February 2026
40AQI (US)
4th February 2026
50AQI (US)
5th February 2026
46AQI (US)
6th February 2026
47AQI (US)
7th February 2026
57AQI (US)
8th February 2026
51AQI (US)
9th February 2026
52AQI (US)
10th February 2026
23AQI (US)
11th February 2026
43AQI (US)
12th February 2026
57AQI (US)
13th February 2026
38AQI (US)
14th February 2026
55AQI (US)
15th February 2026
42AQI (US)
16th February 2026
49AQI (US)
17th February 2026
27AQI (US)
18th February 2026
17AQI (US)
19th February 2026
10AQI (US)
20th February 2026
30AQI (US)
21st February 2026
50AQI (US)
22nd February 2026
40AQI (US)
23rd February 2026
42AQI (US)
24th February 2026
31AQI (US)
25th February 2026
42AQI (US)
26th February 2026
34AQI (US)
27th February 2026
40AQI (US)
28th February 2026
31AQI (US)
1st March 2026
22AQI (US)
2nd March 2026
38AQI (US)
3rd March 2026
53AQI (US)
4th March 2026
41AQI (US)
5th March 2026
39AQI (US)
6th March 2026
43AQI (US)
7th March 2026
63AQI (US)
8th March 2026
40AQI (US)
9th March 2026
31AQI (US)
10th March 2026
37AQI (US)
11th March 2026
24AQI (US)
12th March 2026
45AQI (US)
13th March 2026
47AQI (US)
14th March 2026
57AQI (US)
15th March 2026
49AQI (US)
16th March 2026
45AQI (US)
17th March 2026
45AQI (US)
18th March 2026
35AQI (US)
19th March 2026
41AQI (US)
20th March 2026
31AQI (US)
21st March 2026
33AQI (US)
22nd March 2026
61AQI (US)
23rd March 2026
59AQI (US)
24th March 2026
40AQI (US)
25th March 2026
41AQI (US)
26th March 2026
50AQI (US)
27th March 2026
57AQI (US)
28th March 2026
40AQI (US)
29th March 2026
42AQI (US)
30th March 2026
38AQI (US)
31st March 2026
48AQI (US)
1st April 2026
44AQI (US)
2nd April 2026
45AQI (US)
3rd April 2026
33AQI (US)
4th April 2026
43AQI (US)
5th April 2026
40AQI (US)
6th April 2026
30AQI (US)
7th April 2026
38AQI (US)
8th April 2026
31AQI (US)
9th April 2026
34AQI (US)
10th April 2026
40AQI (US)
11th April 2026
38AQI (US)
12th April 2026
39AQI (US)
13th April 2026
38AQI (US)
14th April 2026
32AQI (US)
15th April 2026
35AQI (US)
16th April 2026
35AQI (US)
17th April 2026
18th April 2026
33AQI (US)
19th April 2026
33AQI (US)
20th April 2026
39AQI (US)
21st April 2026
37AQI (US)
22nd April 2026
23rd April 2026
49AQI (US)
24th April 2026
41AQI (US)
25th April 2026
42AQI (US)
26th April 2026
41AQI (US)
27th April 2026
48AQI (US)
28th April 2026
52AQI (US)
29th April 2026
56AQI (US)
30th April 2026
38AQI (US)
1st May 2026
49AQI (US)
2nd May 2026
50AQI (US)
3rd May 2026
51AQI (US)
4th May 2026
43AQI (US)
5th May 2026
28AQI (US)
6th May 2026
39AQI (US)
7th May 2026
29AQI (US)
8th May 2026
24AQI (US)
9th May 2026
10th May 2026
27AQI (US)
11th May 2026
31AQI (US)
12th May 2026
44AQI (US)
13th May 2026
46AQI (US)
14th May 2026
33AQI (US)
15th May 2026
38AQI (US)
16th May 2026
70AQI (US)
17th May 2026
61AQI (US)
18th May 2026
69AQI (US)
19th May 2026
68AQI (US)
20th May 2026
55AQI (US)
21st May 2026
57AQI (US)
22nd May 2026
66AQI (US)
23rd May 2026
59AQI (US)
24th May 2026
53AQI (US)
25th May 2026
68AQI (US)
26th May 2026
68AQI (US)
27th May 2026
24AQI (US)
28th May 2026
24AQI (US)
29th May 2026
22AQI (US)
30th May 2026
22AQI (US)
31st May 2026
25AQI (US)
1st June 2026
26AQI (US)
2nd June 2026
30AQI (US)
3rd June 2026
30AQI (US)
4th June 2026
24AQI (US)
5th June 2026
23AQI (US)
6th June 2026
20AQI (US)
7th June 2026
20AQI (US)
8th June 2026
19AQI (US)
9th June 2026
22AQI (US)
10th June 2026
28AQI (US)
11th June 2026
28AQI (US)
12th June 2026
24AQI (US)
13th June 2026
41AQI (US)
14th June 2026
28AQI (US)
15th June 2026
20AQI (US)
16th June 2026
29AQI (US)
17th June 2026
26AQI (US)
18th June 2026
20AQI (US)
19th June 2026
26AQI (US)
20th June 2026
27AQI (US)
21st June 2026
27AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
19AQI (US)
25th June 2026
23AQI (US)
26th June 2026
36AQI (US)
27th June 2026
28AQI (US)
28th June 2026
25AQI (US)
29th June 2026
23AQI (US)
30th June 2026
23AQI (US)
1st July 2026
23AQI (US)
2nd July 2026
22AQI (US)
3rd July 2026
21AQI (US)
4th July 2026
21AQI (US)
5th July 2026
20AQI (US)
6th July 2026
19AQI (US)
7th July 2026
22AQI (US)
8th July 2026
20AQI (US)
9th July 2026
15AQI (US)
10th July 2026
24AQI (US)
11th July 2026
23AQI (US)
12th July 2026
24AQI (US)
13th July 2026
23AQI (US)
14th July 2026
22AQI (US)
15th July 2026
18AQI (US)
16th July 2026
23AQI (US)
17th July 2026
23AQI (US)
18th July 2026
32AQI (US)
19th July 2026
29AQI (US)
20th July 2026
27AQI (US)
21st July 2026
32AQI (US)
22nd July 2026
34AQI (US)
23rd July 2026
32AQI (US)
24th July 2026
31AQI (US)
25th July 2026
31AQI (US)
26th July 2026
31AQI (US)
27th July 2026
30AQI (US)
28th July 2026
31AQI (US)
29th July 2026
31AQI (US)
30th July 2026
28AQI (US)
31st July 2026
36AQI (US)
1st August 2026
40AQI (US)
2nd August 2026
40AQI (US)
3rd August 2026
34AQI (US)
4th August 2026
33AQI (US)
5th August 2026
36AQI (US)
6th August 2026
35AQI (US)
7th August 2026
33AQI (US)
8th August 2026
35AQI (US)
9th August 2026
34AQI (US)
10th August 2026
35AQI (US)
11th August 2026
35AQI (US)
12th August 2026
42AQI (US)
13th August 2026
40AQI (US)
14th August 2026
32AQI (US)
15th August 2026
38AQI (US)
16th August 2026
35AQI (US)
17th August 2026
29AQI (US)
18th August 2026
37AQI (US)
19th August 2026
32AQI (US)
20th August 2026
30AQI (US)
21st August 2026
32AQI (US)
22nd August 2026
32AQI (US)
23rd August 2026
34AQI (US)
24th August 2026
33AQI (US)
25th August 2026
32AQI (US)
26th August 2026
32AQI (US)
27th August 2026
31AQI (US)
28th August 2026
36AQI (US)
29th August 2026
33AQI (US)
30th August 2026
31AQI (US)
31st August 2026
31AQI (US)
1st September 2026
35AQI (US)
2nd September 2026
31AQI (US)
3rd September 2026
38AQI (US)
4th September 2026
38AQI (US)
5th September 2026
31AQI (US)
6th September 2026
31AQI (US)
7th September 2026
29AQI (US)
8th September 2026
35AQI (US)
9th September 2026
32AQI (US)
10th September 2026
34AQI (US)
11th September 2026
39AQI (US)
12th September 2026
34AQI (US)
13th September 2026
36AQI (US)
14th September 2026
31AQI (US)
15th September 2026
31AQI (US)
16th September 2026
33AQI (US)
17th September 2026
34AQI (US)
18th September 2026
37AQI (US)
19th September 2026
34AQI (US)
20th September 2026
32AQI (US)
21st September 2026
34AQI (US)
22nd September 2026
39AQI (US)
23rd September 2026
38AQI (US)
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

34AQI (US)

40AQI (US)

43AQI (US)

39AQI (US)

45AQI (US)

25AQI (US)

26AQI (US)

34AQI (US)

34AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202636AQI (US)

30
1
23
5
25
6
26
2
18
12
30
31
31
23
237
26

Highest AQI (US) recorded in

May

45AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202537AQI (US)

30
1
27
1
31
30
31
30
30
1
11
20
19
11
15
16
30
31
315
50

Highest AQI (US) recorded in

August

53AQI (US)

Lowest AQI (US) recorded in

April

27AQI (US)

202430AQI (US)

27
29
31
29
31
29
1
1
30
25
6
30
31
27
3
31
321
40

Highest AQI (US) recorded in

July

63AQI (US)

Lowest AQI (US) recorded in

January

20AQI (US)

202322AQI (US)

31
27
31
30
31
30
31
31
30
31
29
31
363

Highest AQI (US) recorded in

January

28AQI (US)

Lowest AQI (US) recorded in

December

18AQI (US)

202225AQI (US)

31
20
31
30
31
29
1
24
2
29
31
30
31
319
1

Highest AQI (US) recorded in

February

28AQI (US)

Lowest AQI (US) recorded in

July

23AQI (US)

202123AQI (US)

27
28
30
1
30
31
30
31
27
1
30
31
30
31
356
2

Highest AQI (US) recorded in

October

30AQI (US)

Lowest AQI (US) recorded in

February

18AQI (US)

202023AQI (US)

13
21
18
30
31
31
30
31
30
31
266

Highest AQI (US) recorded in

October

26AQI (US)

Lowest AQI (US) recorded in

March

20AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
37AQI (US)
Least Polluted Year Recorded
2023(Avg.)
22AQI (US)

Saint Denis's annual 2026 AQI (US) (36) shows an average percentage change of 39.6% (worsened AQI (US)) compared to previous years: 2020 (23), 2021 (23), 2022 (25), 2023 (22), 2024 (30), 2025 (37).